CN111336031A - Double-cylinder engine crankcase - Google Patents
Double-cylinder engine crankcase Download PDFInfo
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- CN111336031A CN111336031A CN202010145516.0A CN202010145516A CN111336031A CN 111336031 A CN111336031 A CN 111336031A CN 202010145516 A CN202010145516 A CN 202010145516A CN 111336031 A CN111336031 A CN 111336031A
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- lubricating oil
- concave
- crankshaft
- crankcase
- concave plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/06—Dip or splash lubrication
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention belongs to the technical field of automobile accessories, and particularly relates to a double-cylinder engine crankcase; the crankshaft seat is mounted on one side of the upper crankcase, and a plurality of piston holes are formed in the top of the upper crankcase; according to the invention, the concave plate capable of rising is arranged at the bottom of the inner side of the upper crankcase, the crankshaft stirs airflow to reach the inner wall of the upper crankcase, the inner wall of the upper crankcase guides the airflow to the pressure plate, then the pressure plate is pressed downwards, the steel wire rope drives the concave plate to quickly rise, so that lubricating oil can be pushed upwards, the depth of the lubricating oil at the position is increased, the rotating crankshaft is immersed more, the lubricating oil adhered to the crankshaft is more, meanwhile, after the lubricating oil is more lost, the height of the lubricating oil is reduced, at the moment, when the concave plate drives the lubricating oil to rise, the lubricating oil continues to move upwards due to the action of inertia force after the concave plate stops, the lubricating oil can continuously move onto the crankshaft.
Description
Technical Field
The invention belongs to the technical field of automobile accessories, and particularly relates to a double-cylinder engine crankcase.
Background
The lower part of the cylinder block, where the crankshaft is mounted, is called the crankcase, which is cast integrally with the cylinder block, and includes an upper crankcase, which stores lubricating oil and closes the upper crankcase, and is also called the sump. The oil pan is stressed little and is generally stamped from sheet steel, and its shape depends on the overall layout of the engine and the capacity of the engine oil. An oil stabilizing baffle is arranged in the oil sump to prevent the oil level from fluctuating too much when the automobile is jolt. The bottom of the oil pan is also provided with an oil drain plug, and a permanent magnet is usually arranged on the oil drain plug to adsorb metal chips in lubricating oil and reduce the abrasion of an engine. Gaskets are provided between the mating surfaces of the upper and lower crankcases to prevent leakage of lubricating oil.
When the crankshaft rotates to the lowest part, the lubricating oil needs to be contacted with the lubricating oil at the bottom of the crankshaft, then when the crankshaft rotates upwards, because the limit of the crankshaft mounting seat, the height of the lubricating oil is lower than that of the central rotating shaft of the crankshaft, after the crankshaft rotates upwards and is separated from the lubricating oil, the lubricating oil on the surface of the crankshaft can fall off a part due to the action of centrifugal force, and when the crankshaft rotates to the top part and a piston pressed downwards presses the crankshaft to rotate, the service life of the crankshaft can be reduced due to the reduction of the lubricating oil, and after long-time work and the loss of the lubricating oil, the crankshaft can not be contacted with the lubricating oil any more, and finally the crankshaft and the piston are quickly worn out, the service life of the crankshaft and the piston is prolonged.
Disclosure of Invention
In view of the deficiencies of the prior art, the present invention provides a crankcase for a two-cylinder engine to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a double-cylinder engine crankcase comprises an upper crankcase and a lower crankcase arranged at the bottom of the upper crankcase, wherein a crankshaft seat is arranged on one side of the upper crankcase, and a plurality of piston holes are formed in the top of the upper crankcase; the bottom of the inner side of the upper crankcase is provided with concave plates with the same number of piston holes, the concave plates are positioned right below the piston holes, the concave plates are grouped in pairs, the bottom of each concave plate is fixedly connected with a limiting cylinder, the bottom of each limiting cylinder is inserted with a limiting rod, and the bottom end of each limiting rod is fixedly connected with the inner wall of the lower crankcase; the front side and the rear side of each of the two concave plates in the same group are provided with a steel wire rope, two ends of each steel wire rope are respectively connected with the two concave plates, the inner walls of the upper crank cases on the front sides and the rear sides of the concave plates are hinged with pressing plates, the hinged points are located at the bottoms of the pressing plates, which are in contact with the upper crank cases, the lower surfaces of the pressing plates are provided with pressure springs, the bottom ends of the pressure springs are connected with the inner walls of the upper crank cases, and the steel wire ropes; the inner wall of the upper crankcase is fixedly connected with two support rods which are respectively positioned at the bottoms of the two steel wire ropes at the front side and the rear side of the concave plate; when the crankshaft rotates to the lowest part, the crankshaft needs to be contacted with lubricating oil at the bottom part and then rotates upwards, because the height of the lubricating oil is lower than that of the central rotating shaft of the crankshaft due to the limitation of the crankshaft mounting seat, after the crankshaft rotates upwards and is separated from the lubricating oil, part of the lubricating oil on the surface of the crankshaft falls off under the action of centrifugal force, and when the crankshaft rotates to the top and the piston pressed downwards from the top extrudes the crankshaft to rotate, the reduction of the lubricating oil causes the reduction of the service life of the crankshaft, and after long-time work, after the lubricating oil is lost, the crankshaft can not contact with the lubricating oil any more, and the rapid abrasion of the crankshaft and the piston is finally caused, so the invention mainly solves the problem of increasing the lubricating oil adhered on the crankshaft, when the lubricating oil is reduced, the lubricating oil can be adhered to the crankshaft, so that the service lives of the crankshaft and the piston are prolonged; the specific measures and the using process are as follows: the bottom of the inner side of the upper crankcase is provided with the concave plate capable of rising, the addition amount of lubricating oil at the beginning is higher than the height of the concave plate, when the highest end of the crankshaft rotates from the highest position to the lowest position quickly, the crankshaft stirs airflow to the inner wall of the upper crankcase, the inner wall of the upper crankcase guides the airflow to the pressure plate, then the free end of the pressure plate is pressed downwards, the pressure plate can pull the steel wire rope, one end of the steel wire rope connected with the concave plate can drive the concave plate to go upwards quickly under the action of the supporting rod, the lubricating oil can be pushed upwards, the depth of the lubricating oil at the position is increased, the upward lubricating oil can immerse the rotating crankshaft more, more lubricating oil is adhered to the crankshaft, the height of the lubricating oil is reduced after more lubricating oil is lost, at the moment, the concave plate drives the lubricating oil to rise, and after the concave plate stops, the lubricating oil, the lubricating oil can continuously move to the crankshaft, the service life of the crankshaft is prolonged, more lubricating oil can be adhered to the crankshaft when the amount of the lubricating oil is less, and the lubricating oil can be supplied to the crankshaft when the amount of the lubricating oil is less; and when the clamp plate pushes down, can drive another clamp plate of the same group through connecting the rope and push down, and then drive another recess plate that does not rise in the same group through connecting the rope and rise, can play the effect of blockking to some lubricating oil that both sides were promoted when the recess plate that rises at first removed, make the volume of lubricating oil outflow in the recess plate that rises at first from reducing.
Preferably, push blocks matched with the upper surfaces of the concave plates are arranged at positions, close to the two ends, of the tops of the concave plates, a right-angle rod is fixedly connected to one end, far away from the concave plates, of each push block, and the end part of the horizontal end of each right-angle rod is connected to the wall thickness of the concave plate through an elastic piece; the bottom of the right-angle rod is provided with a connecting rope, and the bottom end of the connecting rope is fixedly connected with the limiting rod; because the concave plate upward movement, there is some lubricating oil to follow the landing of concave plate both sides, cause the lubricated oil mass of concave plate lifting to reduce, consequently, through be provided with the ejector pad that blocks the effect in concave plate both sides, the ejector pad can block the lubricated oil mass in the concave plate, the volume that makes the concave plate upwards lifting lubricating oil is enough big, the ejector pad is when following the concave plate and rising simultaneously, owing to there is the drawing of connecting the rope to hold, can drive two ejector pads and be close to each other and remove to the concave plate middle part, two ejector pads can rise with the lubricating oil extrusion between the two, to the effect of upward injection, the rise height of lubricating oil has been improved, make the content of the epaxial lubricating oil of bent further improve.
Preferably, a plurality of metal ropes are fixedly connected between the two push blocks, and a plurality of elastic balls are uniformly distributed on the metal ropes; when two ejector pads extrude lubricating oil between the two, because the ejector pad is close to each other, and then the metal rope is not hard up, and the metal rope middle part can upwards arch up, and the last elastic ball of metal rope can contact with the bent axle, and then can get off the piece friction on the bent axle, guarantees that the piece can drop in the concave plate completely, has improved the smoothness on bent axle surface, and then improves the life of piston.
Preferably, one opposite surface of each of the two pushing blocks is an inclined surface, and the bottom end of each inclined surface is closer to the end part of the concave plate than the top end of each inclined surface; because the relative one side of two ejector pad ejector pads is the inclined plane, and the inclined plane bottom is closer to the notch board tip than the inclined plane top, when two ejector pads are close to each other, when extrudeing lubricating oil between the two, can make the ascending lubricating oil of extrusion concentrate to connecting rope middle part under the direction on inclined plane, and then the power when making the elastic ball paste tight bent axle is bigger, and is better to the clearance piece of bent axle.
Preferably, the top of the pressure plate is a concave surface, and the height of one end of the concave surface close to the concave plate is larger than that of one end far away from the concave plate; because the top of the pressure plate is a concave surface, and the height of the end of the concave surface close to the concave plate is larger than that of the end far away from the concave plate, when airflow stirred by the crankshaft is guided to the position through the inner wall of the upper crankcase, on one hand, the concave surface can play a role of air pocket for the airflow, so that the pressing effect of the pressure plate is better, the speed for driving the concave plate to rise is higher, the height for upward movement of lubricating oil under inertia is larger, the lubricating area for the crankshaft is larger, the airflow can be guided along the concave surface, the airflow is blown out from the end of the concave surface close to the concave plate, the lubricating oil is concentrated to the top of the concave plate, the depth of the lubricating oil above the concave plate is increased, the lubricating oil pocket when the concave plate rises is larger.
Preferably, the concave plate is provided with a connecting hole, one end of the connecting hole is arranged in the concave plate at the elastic part, and the other end of the connecting hole is arranged on the surface of the end part of the concave plate; because the ejector pad is close to each other, the horizontal segment of right angle pole can remove to the concave plate, and then with the lubricating oil of the interior department of elastic component from the inside extrusion of concave plate, because the horizontal segment of right angle pole is less with the clearance of concave plate, the resistance of extrusion lubricating oil is great, consequently, setting through the connecting hole, when right angle pole extrusion elastic component, make lubricating oil extrude from the connecting hole fast, the resistance when having reduced the right angle pole and removing, and then the speed that the ejector pad removed has been improved, it is faster to make the ejector pad promote the lubrication has the speed that rises, thereby it is bigger to make the height that lubricating oil rises, epaxial lubricating oil content further increases, the service life of bent axle is prolonged.
The invention has the technical effects and advantages that:
1. according to the double-cylinder engine crankcase provided by the invention, the concave plate capable of rising is arranged at the bottom of the inner side of the upper crankcase, the crankshaft stirs airflow to the inner wall of the upper crankcase, the inner wall of the upper crankcase guides the airflow to the pressure plate, then the free end of the pressure plate is pressed downwards, the wire rope drives the concave plate to quickly go upwards, so that lubricating oil can be pushed upwards, the depth of the lubricating oil at the position is increased, the rotating crankshaft is immersed more, the lubricating oil adhered to the crankshaft is more, meanwhile, after the lubricating oil is more lost, the height of the lubricating oil is reduced, at the moment, when the concave plate drives the lubricating oil to rise, the lubricating oil continues to move upwards under the action of inertia force after the concave plate stops, and can continuously move onto the crankshaft, and the.
2. According to the double-cylinder engine crankcase, the pushing blocks with the blocking effect are arranged on the two sides of the concave plate, the pushing blocks can block the amount of lubricating oil in the concave plate, so that the amount of the lubricating oil lifted upwards by the concave plate is large enough, meanwhile, when the pushing blocks lift along with the concave plate, the two pushing blocks are driven to mutually approach and move towards the middle of the concave plate due to the pulling of the connecting rope, the lubricating oil between the two pushing blocks can be extruded and lifted by the two pushing blocks, the upward injection effect is achieved, the lifting height of the lubricating oil is improved, and the content of the lubricating oil on the crankshaft is further improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the internal structure of the upper crankcase of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of portion B of FIG. 3 according to the present invention;
FIG. 5 is a cross-sectional view of a major face of a recess plate in accordance with the present invention;
in the figure: the device comprises an upper crankcase 1, a lower crankcase 2, a crankshaft seat 3, a piston hole 4, a concave plate 5, a limiting cylinder 6, a limiting rod 7, a steel wire rope 8, a pressing plate 9, a pressure spring 10, a supporting rod 11, a pushing block 12, a right-angle rod 13, a connecting rope 14, a metal rope 15, an elastic ball 16, a connecting hole 17 and an elastic piece 18.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described below with reference to the specific embodiments, and the front, the back, the left, the right, the upper and the lower of the invention are based on the view direction of fig. 5.
As shown in fig. 1-5, the double-cylinder engine crankcase of the present invention comprises an upper crankcase 1 and a lower crankcase 2 installed at the bottom of the upper crankcase, wherein a crankshaft seat 3 is installed at one side of the upper crankcase 1, and a plurality of piston holes 4 are opened at the top of the upper crankcase 1; the bottom of the inner side of the upper crankcase 1 is provided with concave plates 5 with the same number as the piston holes 4, the concave plates 5 are positioned under the piston holes 4, every two concave plates 5 form a group, the bottom of each concave plate 5 is fixedly connected with a limiting cylinder 6, the bottom of each limiting cylinder 6 is inserted with a limiting rod 7, and the bottom end of each limiting rod 7 is fixedly connected with the inner wall of the lower crankcase 2; the front side and the rear side of each of the two concave plates 5 in the same group are provided with a steel wire rope 8, two ends of each steel wire rope 8 are respectively connected with the two concave plates 5, the inner walls of the upper crank cases 1 on the front sides and the rear sides of the concave plates 5 are respectively hinged with a pressing plate 9, the hinged point is positioned at the bottom of one surface, in contact with the upper crank cases 1, of the pressing plate 9, the lower surface of the pressing plate 9 is provided with a pressure spring 10, the bottom end of the pressure spring 10 is connected with the inner wall of the upper crank case 1, and the steel wire; the inner wall of the upper crankcase 1 is fixedly connected with two support rods 11, and the two support rods 11 are respectively positioned at the bottoms of the two steel wire ropes 8 at the front side and the rear side of the concave plate 5; when the crankshaft rotates to the lowest part, the crankshaft needs to be contacted with lubricating oil at the bottom part and then rotates upwards, because the height of the lubricating oil is lower than that of the central rotating shaft of the crankshaft due to the limitation of the crankshaft mounting seat, after the crankshaft rotates upwards and is separated from the lubricating oil, part of the lubricating oil on the surface of the crankshaft falls off under the action of centrifugal force, and when the crankshaft rotates to the top and the piston pressed downwards from the top extrudes the crankshaft to rotate, the reduction of the lubricating oil causes the reduction of the service life of the crankshaft, and after long-time work, after the lubricating oil is lost, the crankshaft can not contact with the lubricating oil any more, and the rapid abrasion of the crankshaft and the piston is finally caused, so the invention mainly solves the problem of increasing the lubricating oil adhered on the crankshaft, when the lubricating oil is reduced, the lubricating oil can be adhered to the crankshaft, so that the service lives of the crankshaft and the piston are prolonged; the specific measures and the using process are as follows: through installing the concave plate 5 that can rise in the inboard bottom of last crankcase 1, the addition of lubricating oil at the initial time is higher than the height of concave plate 5, when the highest end of bent axle rotates to the minimum from the highest point fast, the bent axle stirs the air current and arrives on the upper crankcase 1 inner wall, upper crankcase 1 inner wall leads the air current to clamp plate 9 department, then push down the free end of clamp plate 9, and then clamp plate 9 can stimulate wire rope 8, the one end that wire rope 8 is connected with concave plate 5 can drive concave plate 5 fast upwards because of the effect of bracing piece 11, and then can promote lubricating oil upwards, make the degree of depth increase of lubricating oil here, and then upwards lubricating oil can to the more of crankshaft submergence that rotates, make the lubricating oil of crankshaft go up more, simultaneously after the lubricating oil loss is more, the height of lubricating oil reduces, at this moment, concave plate 5 drives lubricating oil when rising, after the concave plate 5 stops, the lubricating oil continues to move upwards due to the action of the inertia force and can continuously move to the crankshaft, so that the service life of the crankshaft is prolonged, more lubricating oil can be adhered to the crankshaft when the quantity of the lubricating oil is small, and the lubricating oil can be supplied to the crankshaft when the quantity of the lubricating oil is small; when the pressing plate 9 is pressed down, the connecting rope 14 can drive the other pressing plate 9 in the same group to be pressed down, and then the connecting rope 14 drives the other non-rising concave plate 5 in the same group to rise, so that a part of lubricating oil pushed to two sides when the first rising concave plate 5 moves can be blocked, and the outflow amount of the lubricating oil in the first rising concave plate 5 is reduced.
A plurality of metal ropes 15 are fixedly connected between the two push blocks 12, and a plurality of elastic balls 16 are uniformly distributed on the metal ropes 15; when two ejector pads 12 extrude lubricating oil between the two, because ejector pads 12 are close to each other, and then metal rope 15 is not hard up, and metal rope 15 middle part can be upwards hunch-up, and elastic ball 16 on the metal rope 15 can contact with the bent axle, and then can get off the piece friction on the bent axle, guarantees that the piece can drop in the concave plate 5 completely, has improved the smoothness on bent axle surface, and then improves the life of piston.
The opposite surfaces of the two push blocks 12 are inclined surfaces, and the bottom ends of the inclined surfaces are closer to the end part of the concave plate 5 than the top ends of the inclined surfaces; because the relative one side of two ejector pads 12 is the inclined plane, and the inclined plane bottom is closer to 5 tip on the concave plate than the inclined plane top, when two ejector pads 12 were close to each other, when extrudeing lubricating oil between the two, can make the ascending lubricating oil of extrusion concentrate to connecting rope 14 middle part under the direction on inclined plane, and then make the power when elasticity ball 16 pastes tight bent axle bigger, and is better to the clearance piece of bent axle.
The top of the pressure plate 9 is a concave surface, and the height of one end of the concave surface close to the concave plate 5 is larger than that of one end far away from the concave plate 5; because the top of the pressing plate 9 is a concave surface, and the height of the concave surface close to one end of the concave plate 5 is larger than that of the end far away from the concave plate 5, when airflow stirred by the crankshaft is guided to the position through the inner wall of the upper crankcase 1, on one hand, the concave surface can play a role of air pocket for the airflow, so that the pressing effect of the pressing plate 9 is better, further, the speed for driving the concave plate 5 to rise is higher, the height of the lubricating oil moving upwards by inertia is larger, the lubricating area of the crankshaft is larger, on the other hand, the airflow can be guided along the concave surface, the airflow is blown out from the end of the concave surface close to the concave plate 5, the lubricating oil is concentrated to the top of the concave plate 5, the depth of the lubricating oil above the concave plate 5 is increased, the lubricating oil pocket when.
A connecting hole 17 is formed in the concave plate 5, one end of the connecting hole 17 is arranged in the concave plate 5 at the position of the elastic piece 18, and the other end of the connecting hole 17 is arranged on the surface of the end part of the concave plate 5; because the ejector pad 12 is close to each other, the horizontal segment of right angle pole 13 can remove in 5 to the concave plate, and then with the lubricating oil of the interior department of elastic component 18 from the inside extrusion of concave plate 5, because the horizontal segment of right angle pole 13 is less with the clearance of concave plate 5, the resistance of extrusion lubricating oil is great, consequently, setting through connecting hole 17, when right angle pole 13 extrudes elastic component 18, make lubricating oil extrude in connecting hole 17 fast, the resistance when having reduced right angle pole 13 and removing, and then the speed that ejector pad 12 removed has been improved, it is faster to make ejector pad 12 promote the lubrication has the speed that rises, thereby it is bigger to make the height that lubricating oil rises, the lubricating oil content on the bent axle further increases, the life of bent axle has been improved.
When the crankshaft rotates to the lowest part, the crankshaft needs to be contacted with lubricating oil at the bottom part and then rotates upwards, because the height of the lubricating oil is lower than that of the central rotating shaft of the crankshaft due to the limitation of the crankshaft mounting seat, after the crankshaft rotates upwards and is separated from the lubricating oil, part of the lubricating oil on the surface of the crankshaft falls off under the action of centrifugal force, and when the crankshaft rotates to the top and the piston pressed downwards from the top extrudes the crankshaft to rotate, the reduction of the lubricating oil causes the reduction of the service life of the crankshaft, and after long-time work, after the lubricating oil is lost, the crankshaft can not contact with the lubricating oil any more, and the rapid abrasion of the crankshaft and the piston is finally caused, so the invention mainly solves the problem of increasing the lubricating oil adhered on the crankshaft, when the lubricating oil is reduced, the lubricating oil can be adhered to the crankshaft, so that the service lives of the crankshaft and the piston are prolonged; the specific measures and the using process are as follows: through installing the concave plate 5 that can rise in the inboard bottom of last crankcase 1, the addition of lubricating oil at the initial time is higher than the height of concave plate 5, when the highest end of bent axle rotates to the minimum from the highest point fast, the bent axle stirs the air current and arrives on the upper crankcase 1 inner wall, upper crankcase 1 inner wall leads the air current to clamp plate 9 department, then push down the free end of clamp plate 9, and then clamp plate 9 can stimulate wire rope 8, the one end that wire rope 8 is connected with concave plate 5 can drive concave plate 5 fast upwards because of the effect of bracing piece 11, and then can promote lubricating oil upwards, make the degree of depth increase of lubricating oil here, and then upwards lubricating oil can to the more of crankshaft submergence that rotates, make the lubricating oil of crankshaft go up more, simultaneously after the lubricating oil loss is more, the height of lubricating oil reduces, at this moment, concave plate 5 drives lubricating oil when rising, after the concave plate 5 stops, the lubricating oil continues to move upwards due to the action of the inertia force and can continuously move to the crankshaft, so that the service life of the crankshaft is prolonged, more lubricating oil can be adhered to the crankshaft when the quantity of the lubricating oil is small, and the lubricating oil can be supplied to the crankshaft when the quantity of the lubricating oil is small; when the pressing plate 9 is pressed down, the connecting rope 14 can drive the other pressing plate 9 in the same group to be pressed down, and then the connecting rope 14 drives the other non-rising concave plate 5 in the same group to rise, so that a part of lubricating oil pushed to two sides when the first rising concave plate 5 moves can be blocked, and the outflow amount of the lubricating oil in the first rising concave plate 5 is reduced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a double-cylinder engine crankcase, includes last crankcase (1) and installs lower crankcase (2) in its bottom, its characterized in that: a crankshaft seat (3) is installed on one side of the upper crankcase (1), and a plurality of piston holes (4) are formed in the top of the upper crankcase (1); the bottom of the inner side of the upper crankcase (1) is provided with concave plates (5) with the same number as the piston holes (4), the concave plates (5) are positioned under the piston holes (4), the concave plates (5) are grouped in pairs, the bottom of each concave plate (5) is fixedly connected with a limiting cylinder (6), the bottom of each limiting cylinder (6) is inserted with a limiting rod (7), and the bottom of each limiting rod (7) is fixedly connected with the inner wall of the lower crankcase (2); the front side and the rear side of each of the two concave plates (5) in the same group are provided with a steel wire rope (8), two ends of each steel wire rope (8) are respectively connected with the two concave plates (5), the inner walls of the upper crank cases (1) on the front sides and the rear sides of the concave plates (5) are respectively hinged with a pressing plate (9), the hinged points are located at the bottoms of the surfaces, contacting with the upper crank cases (1), of the pressing plates (9), the lower surfaces of the pressing plates (9) are provided with compression springs (10), the bottom ends of the compression springs (10) are connected with the inner walls of the upper crank cases (1), and the steel wire ropes (8) penetrate through the; go up crankcase (1) inner wall and linked firmly two bracing pieces (11), two bracing pieces (11) are located two wire rope (8) bottoms of concave plate (5) front and back side respectively.
2. The double-cylinder engine crankcase of claim 1, characterized in that: push blocks (12) matched with the upper surfaces of the concave plates (5) are arranged at positions, close to the two ends, of the tops of the concave plates (5), right-angle rods (13) are fixedly connected to one ends, far away from the concave plates (5), of the push blocks (12), and the end parts of the horizontal ends of the right-angle rods (13) are connected into the wall thickness of the concave plates (5) through elastic pieces (18); the bottom of the right-angle rod (13) is provided with a connecting rope (14), and the bottom end of the connecting rope (14) is fixedly connected with the limiting rod (7).
3. The double-cylinder engine crankcase of claim 2, characterized in that: a plurality of metal ropes (15) are fixedly connected between the two push blocks (12), and a plurality of elastic balls (16) are uniformly distributed on the metal ropes (15).
4. The double cylinder engine crankcase of claim 3, wherein: the opposite surfaces of the two push blocks (12) are inclined planes, and the bottom ends of the inclined planes are closer to the end part of the concave plate (5) than the top ends of the inclined planes.
5. The double-cylinder engine crankcase of claim 2, characterized in that: the top of the pressure plate (9) is a concave surface, and the height of one end of the concave surface close to the concave plate (5) is larger than that of one end of the concave surface far away from the concave plate (5).
6. The double cylinder engine crankcase of claim 5, wherein: a connecting hole (17) is formed in the concave plate (5), one end of the connecting hole (17) is arranged in the concave plate (5) at the position of the elastic piece (18), and the other end of the connecting hole (17) is arranged on the surface of the end portion of the concave plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010145516.0A CN111336031A (en) | 2020-03-03 | 2020-03-03 | Double-cylinder engine crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010145516.0A CN111336031A (en) | 2020-03-03 | 2020-03-03 | Double-cylinder engine crankcase |
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| CN111336031A true CN111336031A (en) | 2020-06-26 |
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| CN202010145516.0A Pending CN111336031A (en) | 2020-03-03 | 2020-03-03 | Double-cylinder engine crankcase |
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| Country | Link |
|---|---|
| CN (1) | CN111336031A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5937836A (en) * | 1996-11-11 | 1999-08-17 | Honda Giken Kogyo Kabushiki Kaisha | Lubricating and breather system in engine |
| CN101586488A (en) * | 2008-05-21 | 2009-11-25 | 本田技研工业株式会社 | Cylinder head lubricating structure for engine |
| CN202031720U (en) * | 2011-04-20 | 2011-11-09 | 孙贵 | Minitype four-stroke engine |
| CN206753677U (en) * | 2017-05-19 | 2017-12-15 | 浙江耀锋动力科技有限公司 | A kind of engine stirs food tray lubricating system |
-
2020
- 2020-03-03 CN CN202010145516.0A patent/CN111336031A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5937836A (en) * | 1996-11-11 | 1999-08-17 | Honda Giken Kogyo Kabushiki Kaisha | Lubricating and breather system in engine |
| CN101586488A (en) * | 2008-05-21 | 2009-11-25 | 本田技研工业株式会社 | Cylinder head lubricating structure for engine |
| CN202031720U (en) * | 2011-04-20 | 2011-11-09 | 孙贵 | Minitype four-stroke engine |
| CN206753677U (en) * | 2017-05-19 | 2017-12-15 | 浙江耀锋动力科技有限公司 | A kind of engine stirs food tray lubricating system |
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